Samsung 990 1TB vs Western Digital 240GB Green M.2 SSD Comparison

Samsung 990 1TB and Western Digital 240GB Green M.2 are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity, Interface, NVME and NAND Flash Type.

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Samsung 990 1TB	Western Digital 240GB Green M.2
Prices (Change region) In Stock $199.99 Last updated 51 minutes ago. In Stock Free shipping $199.99 In Stock $199.99 In Stock Free shipping $199.99 In Stock $229.99 In Stock Free shipping $289.99 Show 3 more offers	Prices (Change region) Out of Stock Free shipping $79.99 - Buy now
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Brand Samsung	Brand Western Digital
Model MZ-V9V1T0B/AM MZ-V9V1T0BW	Model WDS240G1G0B
Release Date 📅 July 2026	Release Date 📅 April 2020
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★★ (1 reviews) Add a product review	User reviews ★★★★★ (2 reviews) Add a product review
Performance (Charts) n/a	Performance (Charts) 389th / 1748
Effective Value -	Effective Value 302nd / 336
Price history View Details ►	Price history View Details ►
Price/GB $0.20	Price/GB $0.33
GB/$1 5	GB/$1 3
Series 990	Series Green
Capacity 1000 GB	Capacity 240 GB
Interface PCIe Gen4 x4	Interface SATA 6 Gb/s
NVME Yes	NVME No
Form Factor M.2-2280	Form Factor M.2-2280
SSD Controller In-House	SSD Controller -
NAND Flash Type Samsung V NAND	NAND Flash Type TLC
Cache HMB (Host Memory Buffer)	Cache -
Max Sequential Read Up to 7150 MB/s	Max Sequential Read Up to 540 MB/s
Max Sequential Write Up to 6450 MB/s	Max Sequential Write Up to 465 MB/s
MTBF -	MTBF Up to 1.75M hours